My work on TR programs was partially inspired by the “Tote Units‚” of Miller, Galanter, and Pribram who proposed them as a model of behavior. I was also aware of the work on animal behavior by ethologists, such as Nicholas Tinbergen and Konrad Lorenz. Could TR programs serve as a model of some aspects of animal behavior? In my 1998 AI textbook, Artificial Intelligence: A New Synthesis, I...